MCR100JZHF4641 - 4.64kΩ 1W 2512 AEC-Q200 Chip Resistor | ROHM
N.º da peça: MCR100JZHF4641 ⚠ Última compra| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $0.42 | $0,42 |
| 10 | $0.38 | $3,80 |
| 100 | $0.31 | $31,00 |
| 500 | $0.24 | $120,00 |
| 1.000 | $0.19 | $190,00 |
| 4.000 | $0.15 | $600,00 |
MCR100JZHF4641 Visão geral
A chip resistor is a passive surface-mount component whose resistance value is set by a resistive thick-film layer (in this case, ruthenium-oxide dielectric, per the MCR100 family datasheet) printed between two wrap-around metal electrodes on an alumina substrate. Chip resistors form the base layer of every modern electronic circuit — biasing, current sensing, pull-up/pull-down, termination, voltage division, and filtering — and account for the majority of components on a typical PCB. The MCR100JZH family is positioned at the high-power end of this hierarchy (chip resistor -> thick-film chip resistor -> high-power chip resistor -> SMD passive), optimized for circuits where standard 0402/0805/1206 resistors would be thermally inadequate.
Key features include a 4.64 kΩ resistance value, ±1% tolerance (versus the ±5% of the legacy MCR100 family), 1 W continuous power dissipation at 70 °C, a 200 V maximum working voltage, ±100 ppm/°C temperature coefficient, and an operating temperature range of −55 °C to +155 °C. The 2512 package provides a substantial thermal mass that lowers thermal resistance (theta_JA ≈ 25 °C/W on a 1 oz copper test board), enabling sustained 1 W operation without external heatsinking. The resistor is RoHS-compliant, lead-free, and AEC-Q200 qualified for automotive environments including engine-control ECUs, ADAS sensor biasing, and 12 V/24 V load-dump-protected rails.
Architecturally, the MCR100JZH series uses a ruthenium-oxide thick-film paste fired onto a 96 % alumina substrate, with nickel-barrier/solder-coated wrap-around terminations for improved thermal cycling and solder-joint reliability. The series is built on the same basic platform as ROHM's general-purpose MCR100 family, but the JZH suffix denotes an extended-power rating and 1 % tolerance, allowing tighter tolerance without sacrificing power handling. Compared to thin-film resistors, thick-film offers superior pulse-withstand and surge capability, which is critical in automotive load-dump and jump-start scenarios.
This part is well-suited for current-limiting on LED strings, gate-resistor networks in power MOSFET drivers, pull-up/pull-down in 24 V industrial logic, inrush-limiting on small DC-DC converter inputs, and biasing in automotive sensor signal chains. Its 2512 footprint also supports hand-rework and visual inspection during prototyping. When designing with this device, derate power linearly above 70 °C to zero at 155 °C, and follow standard 2512 land dimensions (roughly 6.4 mm × 3.2 mm pad with 0.3 mm × 0.3 mm solder mask sliver relief) for optimal solderability.
Alternativas drop-in para MCR100JZHF4641 — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
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MCR100JZHF4641 Classificações máximas e características elétricas
| Resistance | 4.64 kΩ |
| Resistance Tolerance | ±1 % |
| Power Rating | 1 W |
| Encapsulamento / Caixa | 2512 (6432 Metric) |
| Tipo de montagem | Surface Mount |
| Temperature Coefficient (TCR) | ±100 ppm/°C |
| Temperatura de operação | −55 °C to +155 °C |
| Maximum Working Voltage | 200 V |
| Composition | Thick Film (Ruthenium Oxide) |
| Automotive Qualification | AEC-Q200 Qualified |
| RoHS / Lead-Free | Yes / Yes |
| Packaging | Tape & Reel |
| Standard Reel Quantity | 4000 |
| Series | MCR100JZH |
| Product Status | Last Time Buy (EOL announced per ROHM product page) |
Configuração de pinos do MCR100JZHF4641
| Pino 1 | Term1 — Wrap-around metal termination (cathode/anode — non-polar) |
| Pino 2 | Term2 — Wrap-around metal termination (cathode/anode — non-polar) |
Aplicações típicas
MCR100JZHF4641 é adequado para 6 aplicaçãos: Automotive ECU Biasing Network, Industrial 24V PLC Logic Pull-Up, LED String Current Limiting, Power MOSFET Gate Resistor, Inrush Limiting on DC-DC Input, Precision Voltage Divider (Reference Scaling).
Automotive ECU Biasing Network
MCR100JZHF4641 fits automotive ECU biasing because its AEC-Q200 qualification and 1 W power rating tolerate the harsh thermal and electrical stresses of engine-control and ADAS modules. Placed as a 4.64 kΩ pull-up or pull-down on a 5 V/12 V sensor rail (bias to feed a Hall-effect sensor, throttle-position sensor, or MAP sensor signal chain), the resistor dissipates only a few milliwatts in normal operation but can absorb transient overloads from load-dump events up to its 200 V working-voltage rating. The ±100 ppm/°C TCR keeps bias current stable from −40 °C under-hood cold-start to +125 °C engine-bay steady state, ensuring sensor output stays within the ECU's ADC input range. Compared to a 0.25 W 0805 alternative, the 2512 package's larger thermal mass survives 12 V load-dump surges that would otherwise crack smaller chip resistors. Recommended companion MPNs include the ROHM BD9xx series point-of-load DC-DC for the ECU rail and the Rohm RASMID series ESD diodes for sensor-line protection.
Recomendado
Industrial 24V PLC Logic Pull-Up
MCR100JZHF4641 fits 24 V PLC logic pull-up networks because its 200 V maximum working voltage exceeds the 24 V nominal rail and accommodates inductive transients from relay coils and solenoid drivers. Wired between a 24 V PLC output and a digital input pin, the 4.64 kΩ value sets a 5 mA pull-up current (24 V / 4.64 kΩ) that cleanly overrides field-wiring noise on long cable runs while staying within the IEC 61131-2 type-1 input thresholds. The 1 W power rating gives 10x the headroom of a 0805 (0.1 W) alternative, which matters when a wiring fault shorts the input to 24 V continuously — the resistor absorbs the 0.12 W fault current safely without overheating. Compared to a thin-film alternative, the thick-film ruthenium-oxide construction offers superior pulse-withstand against the 1 kV+ EFT/Burst transients specified by IEC 61000-4-4. Recommended companion MPNs include the Rohm BD7xx LDO for PLC sensor supply and the BR24Lxx I2C EEPROM for logic state retention.
Recomendado
LED String Current Limiting
MCR100JZHF4641 fits high-brightness LED string current-limiting because its 1 W continuous dissipation rating handles the ~0.3–0.5 W of heat generated when biasing a 100 mA LED at 5–6 V Vf from a 12 V rail. Placed in series with a single high-power LED (e.g., OSRAM OSLON SSL or Luxeon Rebel), it converts the 12 V → 6 V difference into heat at roughly 0.6 W, well within the 1 W continuous rating when ambient is below 70 °C. The ±1 % tolerance ensures repeatable LED brightness across production batches (current is V_diff / R, so a 1 % R delta yields a 1 % current delta). Above 70 °C ambient, the part must be linearly derated toward zero at +155 °C, which is important for outdoor lighting and under-hood automotive LED applications. Compared to a 1206 (0.25 W) alternative, the 2512 package survives the inrush current during PWM dimming (100:1 duty at 1 kHz) without thermal-cycling fatigue. Recommended companion MPNs include the Rohm BD81A24 LED driver IC for multi-channel PWM and the Rohm RGW60N120 IGBT for high-power LED dimming.
Recomendado
Power MOSFET Gate Resistor
MCR100JZHF4641 fits power-MOSFET gate-drive resistor networks because its 1 W power rating handles the brief but substantial dissipation during gate-charge transfer (Qgd × Vgs × fsw). Wired between the gate-driver output and the MOSFET gate to control dV/dt and limit ringing, the 4.64 kΩ value sets a moderate gate-charging time constant that suppresses oscillation on long PCB traces while still allowing >100 kHz switching frequencies. The 200 V working-voltage rating exceeds typical 12 V/24 V gate-drive rails by 8x, ensuring reliability under gate-driver fault conditions. The ±100 ppm/°C TCR keeps switching timing stable across the wide operating-temperature swings common in industrial motor drives. Compared to thin-film alternatives, the thick-film construction tolerates the high-voltage transients (Vds spikes) that couple through the Miller capacitance (Cgd) into the gate network during hard-switching events. Recommended companion MPNs include the Rohm R6002ENX MOSFET for the half-bridge and the BM6101FV gate-driver IC for isolated gate drive.
Recomendado
Inrush Limiting on DC-DC Input
MCR100JZHF4641 fits inrush-current limiting on small DC-DC converter inputs because its 1 W continuous dissipation rating handles the brief but substantial heat during power-on surge (V_in × C_in × V_in / t_rise). Wired in series between the supply rail (12 V/24 V) and a DC-DC input bulk capacitor, the 4.64 kΩ value extends the capacitor's rise-time from microseconds to milliseconds, limiting peak inrush current to roughly V_in / R ≈ 2.6 mA at 12 V, which protects upstream connectors, fuses, and load-dump TVS diodes. The 200 V working-voltage rating handles 24 V industrial rails and survives load-dump transients up to 35 V. In steady-state operation the resistor dissipates only tens of milliwatts because the input current is determined by the downstream DC-DC load (e.g., 50 mA → 0.6 W at 12 V). Recommended companion MPNs include the Rohm BD9E101 downstream buck DC-DC and the Rohm RASMID TVS diode for input transient protection.
Recomendado
Precision Voltage Divider (Reference Scaling)
MCR100JZHF4641 fits precision voltage-divider reference-scaling because its ±1 % tolerance and ±100 ppm/°C TCR keep the scaled reference stable across automotive temperature extremes. Wired as the upper arm of a two-resistor divider from a 5 V reference to a 3.3 V ADC reference pin (with the lower arm at ~7.32 kΩ), the 4.64 kΩ value sets V_out = 5 V × 7.32/(7.32 + 4.64) ≈ 3.06 V, well-matched to common MCU ADC full-scale ranges. The 1 W power rating allows the divider to source up to 0.5 mA continuously to the ADC reference pin — more than enough for most precision ADCs that draw <100 µA. Compared to a thin-film 0.1% 0805 alternative, the thick-film 1% part trades absolute accuracy for superior pulse-withstand against automotive transients, which matters when the reference pin is exposed to ESD events on the cable harness. Recommended companion MPNs include the Rohm BD1817 LDO for the reference supply and the Rohm RASMID TVS for ESD protection on the reference pin.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para MCR100JZHF4641 — comparação, orientação de projeto e informações de conformidade.
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Comparação com alternativas
| Parâmetro | Este produto | MCR100JZHFS46410 | MCR100JZHJ4641 | ERJ-1TNF4641 | RC2512FK-074K64L | CRCW25124K64FKEG | AC2512FK-074K64L |
|---|---|---|---|---|---|---|---|
| Brand | ROHM Semiconductor | ROHM Semiconductor | ROHM Semiconductor | Panasonic | Yageo | Vishay Intertechnology | Yageo |
| Package | 2512 (6432 Metric) | 2512 (6432 Metric) - same | 2512 (6432 Metric) - same | 2512 (6432 Metric) - same | 2512 (6432 Metric) - same | 2512 (6432 Metric) - same | 2512 (6432 Metric) - same |
| Resistance | 4.64 kΩ | 4.64 kΩ | 4.64 kΩ | 4.64 kΩ | 4.64 kΩ | 4.64 kΩ | 4.64 kΩ |
| Tolerance | ±1 % | ±1 % | ±5 % | ±1 % | ±1 % | ±1 % | ±1 % |
| Power Rating | 1 W | 1 W | 1 W | 1 W | 1 W | 1 W | 1 W |
| Temperature Coefficient (TCR) | ±100 ppm/°C | ±100 ppm/°C | ±100 ppm/°C | ±100 ppm/°C | ±100 ppm/°C | ±100 ppm/°C | ±100 ppm/°C |
| Max Working Voltage | 200 V | 200 V | 200 V | 200 V | 200 V | 200 V | 200 V |
| AEC-Q200 Qualified | Yes | Yes | Yes | Yes | Yes | Yes | Yes (automotive series) |
| Operating Temperature | −55 °C to +155 °C | −55 °C to +155 °C | −55 °C to +155 °C | −55 °C to +155 °C | −55 °C to +155 °C | −55 °C to +155 °C | −55 °C to +155 °C |
| Lifecycle Status | Last Time Buy | Last Time Buy (same family) | Last Time Buy (same family) | Active | Active | Active | Active |
Principais diferenciais
- Original ROHM brand with documented AEC-Q200 qualification (vs ERJ-1TNF4641 (Panasonic))
- 1 W continuous power rating in 2512 footprint (vs Standard 0.5 W 2512 thick-film resistor (e.g., Yageo RC2512JK-074K64L ±5 %))
- ±1 % tolerance vs ±5 % J-suffix legacy variants (vs MCR100JZHJ4641 (5 % tolerance, same family))
Notas de projeto
The MCR100JZHF4641 is rated for 1 W continuous power dissipation at 70 °C ambient, derated linearly to zero at +155 °C per the ROHM MCR100JZH family datasheet. For a 2512 chip resistor on a typical JEDEC EIA/JESD51 test board with 35 µm 1 oz copper, theta_JA is approximately 25 °C/W. Estimated: at 1 W steady-state dissipation in 25 °C still air, junction temperature rises by ~25 °C above ambient (to ~50 °C), which is well within the derating envelope. Above 70 °C ambient, derate linearly so that at +125 °C ambient the maximum continuous dissipation drops to roughly 0.36 W. Ensure at least 50 mm² of copper pad per termination to keep theta_JA below 30 °C/W in real production PCBs.
Use the standard EIA-2512 land pattern: 0.30 in × 0.13 in (7.5 × 3.2 mm) pads with a 0.20 in (5.1 mm) pad-to-pad pitch and a 0.030 in (0.75 mm) solder-mask sliver between pads. Place the part on a single copper pour (no thermal relief spokes) to maximize heat transfer into the board — thermal relief can raise theta_JA by 50% or more. Avoid placing the resistor near tall components (electrolytic capacitors, transformers) that block convective airflow. For double-sided boards, add thermal vias (8–12 × 0.3 mm diameter) under each termination pad to spread heat into the bottom-layer ground pour.
Do not exceed 200 V working voltage even momentarily — the part can fail as a short circuit, drawing excessive current through the resistor's terminations and igniting the substrate. Do not exceed +155 °C junction temperature under any transient, including soldering rework: the part can survive a peak of 260 °C for up to 10 seconds (per JEDEC J-STD-020), but cumulative time above +200 °C must stay below 60 seconds or the resistance value will drift permanently. Do not use a 2512 land pattern on a part specified for 0805/1206 — the extra copper creates a heat reservoir that can keep the part hot during reflow, raising solder-joint defects.
When using MCR100JZHF4641 as a high-side current-sense or pull-up resistor, place it physically close to the IC pin it serves to minimize trace inductance — every nanohenry of trace inductance adds overshoot on fast transient edges, which can damage downstream semiconductors. For low-side gate-drive applications, place the resistor within 5 mm of the gate-driver output pin to minimize the gate-loop area and suppress ringing. For voltage-divider reference scaling, keep the divider physically close to the ADC reference pin to minimize the capacitive coupling of noise from adjacent switching traces.
Informações de conformidade
RoHS/REACH compliant per ROHM MCR100JZH family datasheet. AEC-Q200 qualified for automotive stress tests. Note: AEC-Q200 (passives) is distinct from AEC-Q100 (ICs); this product uses AEC-Q200.
